Myer dittenhoefer



(No Model.)

M. DITTENHOEFBR.

SYRINGB.

No. 591,958. Patented Oct. 19,1897.

In zfe 7715011' UNITED STATES PATENT OFFICE.

MYER DlTTENl-IOEFER, OF NEWr YORK, N. Y.

SYRINGE.

SPECIFICATION forming part of Letters Patent No. 591,958, dated October 19, '1897.

Application filed March 6, 1896. Serial No. 532,058. (No model.)

'inge-Fittin gs, of which the following is a specitication.

My invention relates to improvements in the manufacture of syringe-nozzles and similar utensils, being applicable, however, to a great many other uses in the arts, indeed, in practically all instances where the presence of a line of severance, such as a slot or opening, would have the effect of cutting out and entirely separating one part of the structure from the other. I will describe my invention, however, as applied to a syrin ge, because that is a good instance of its use, and one in which I propose to use it.

Until recently, spray-syringes and similar instruments have been made with the nozzle or Voperative end supplied with a number of perforations, through which jets of the liquid were ejected, but, lately, the so-called ballnozzle syringe has acquired great favor because it delivers a circular, thin sheet of liquid, instead of the series of somewhat contracted jets, and itis believed that the efficiency of the instrument is increased by this construction. The ball-nozzle syringes, however, as well as all others adapted to deliver a sheet of liquid instead of separate jets, known to me, are quite expensive in manufacture, and my presentinvention, as applied to syringes, relates to improvements whereby the instrument may be constructed at a greatly-reduced cost, and, as I believe, more durably and simply.

Generally stated, my invention consists in thickening or depressing the material of which the syringe is made at its operative end, and on the inside in such manner as that a cutting-tool, which may be used in an ordinary lathe, will -inake a circular incision or continuous slot in the end of the syringe, entirely through the thickness of the blank, but which will not cut entirely through the depressed or thickened portions. Consequently, they remain as stays or supporting devices for the part which would otherwise be entirely severed, and the liquid will be ejected through the slit in a iine, thin sheet instead of in jets.

In the drawings hereof, Figure l illustrates, partlyin section, one form of myinvention, in which internal ribs or shoulders are employed. The section is taken on the line l l of Fig. 2. Fig. 2 illustrates a front view of the end of the syringe shown in Fig. 1. Fig. 3 illustrates a view, partly in section, of a syringe having depressed portions. The section is taken on the line 2 2 of Fig. 4. Fig. 4L illustrates a front view of that which is shown in Fig. 3. Fig. 5 illustrates a View, partly in section, of a form of my invention, in which there are two sets of ribs or shoulders and two cuts or incisions in the face of the syringe. The section is taken upon the line 3 3 of Fig. 6. Fig. 6 illustrates a front view of that which is shown in Fig. 5.

Ispeak ofthe internal ribs or shoulders and the depressions as being both embraced within my invention. They are so, since they both accomplish the same result, and are, in eiect, the same thing, each of them permitting the cutting instrument to make an annular incision deep enough to extend through the material from which the syringe is made from outside to inside, yet not cutting entirely thro ugh the depressed ribs or shoulders. Consequently, in both cases, they remain as supports for the part or parts which would 0therwise be severed.

A is the body of the syringe. B is the end thereof.

O C O, Figs. land 2, are internal ribs or shoulders which project inwardly and span across the corner between what maybe called its closed end and .the side walls of the syringe.

D is the incision or slot made by the cutting instrument, and E E show where thematerial of the ribs has not been cut through, on the contrary a portion left to support the part B, which would otherwise be entirely severed and drop away.

In Figs. 3 and 4, A is the body of the syringe, B' the end thereof, and C' C C the depressed portions located in the same relative place as the ribs or shoulders C are in Figs. l and 2. D is the incision. It will be observed that the parts C C', being depressed IOO below the line of the cutting-tool, are skipped by it, and remain as supports for the parts B which would otherwise be severed from the body of the syringe.

In Figs. 5 and 6, A2 shows the body of the syringe; B2, the end thereof. In this case I make two circular incisions or slots, so that there may be two thin sheets of liquid, the innerone bridging the broken spots in the outer one, and vice versa. The ribs are shown at C2 C2, andit will be observed that they are invtwo sets. Those that appertain to the outer incision D2 project from about the wall of the syringe inwardly only to the edge of the secondincision, whereas the other pair (marked C3) are located between the outer incisionD2 and the inner one D3. Consequently the outer pair C2 C2 support the annular ring between the two incisions, and the pair marked C3 C3 support the interior piece, (marked B) which would otherwise be severed.

I illustrate three ribs or shoulders in Figs. 1, 2, 3, and et, because that is a convenient and useful number, but I do not limit myself to them. One such only may be used, or more than three, if desired, and in the forms shown in Figs. 5 and 6 there may be as many of the ribs or shoulders used as desired.

I do not limit myself to the details of construction shown and described, since it will be obvious to those who are familiar with this art that modifications may be made therein without departing from the essentials of my invention.

I claimp l. A syringe-nozzle having a curved slot made in the end thereof, extending entirely through the article, shoulders which are integral with the body of the nozzle, which project inwardly therefrom, and which bridge the slot for supporting the part, which would otherwise be severed, for the purposes set forth.

2. A syringe-nozzle having at its end shoulders separated from each other and located on the inside of the end of the nozzle at diff ferent distances from the center, and extending below or beyond the plane of the inner surface of the end of the nozzle, whereby a plurality of circular slots may be made which cut through the end of the nozzle, excepting at said separated shoulders, for the purposes set forth.

3. A syringe-nozzle having shoulders located on the inside of the end of the nozzle and separated from each other, and which are integral with the nozzle and extend beyond the plane of its inner surface and which are located at different distances from the center and break joints with each other, for the purposes set forth.

Signed at New York, in the county of New York and State of New York, this 13th day of February, A. D. 1896.

MYER DITTENHOEFER.

l/Vitnesses z PHILLIPS ABBOTT, E. SIMPSON. 

